Head encircling sensory deprivation pillow



FIG. 1 is a schematic perspective view of a head encircling sensory deprivation pillow, showing my new design;

FIG. 2 is a schematic front view thereof; and,

FIG. 3 is a schematic side view thereof.

The broken lines shown in FIG. 1 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a head encircling sensory deprivation pillow, as shown and described. 